1. Conduction: This is the transfer of charge through direct contact between two objects. For example, if you touch a metal object that is charged, you will also become charged.

2. Convection: This is the transfer of charge through the movement of charged particles. For example, when a negatively charged balloon is rubbed against a neutral wall, the negative charges from the balloon are transferred to the wall.

3. Induction: This is the transfer of charge without direct contact between two objects. For example, if you hold a negatively charged balloon near a neutral metal object, the electrons in the metal object will be repelled by the negative charges on the balloon and will move to the far side of the object. This will create a positive charge on the side of the object that is closest to the balloon.